Preparation of Ru-doped Cu-based catalysts for enhanced electrochemical ammonia synthesis from efficient electrocatalytic nitrate reduction

Cu/Cu 2 O/RuO 2 @C composites prepared by the NITRR reached an NH 3 yield of 209.44 μmol cm −2 h −1 and 82.40% Faraday efficiency at −0.6 V ( vs. RHE).